Why does light speed change when it enters water?
Light travels at different speeds in different mediums due to the medium's refractive index. In water, light slows down because it interacts with the water molecules.
What is the refractive index of water?
The refractive index of water is approximately 1.33, meaning light travels about 1.33 times slower in water than in a vacuum.
How does this affect our perception of objects underwater?
When light slows down in water, it bends, causing objects underwater to appear closer to the surface than they actually are. This bending of light is known as refraction.
Can you explain refraction in more detail?
Sure! Refraction occurs when light passes from one medium to another, changing speed and direction. This bending effect is what causes the distortion of images when viewed through water.
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